So I dropped off my box of invitations at the post office this morning, I come home from work and there they are with a note that says they are requiring an additional .20 per envelope because of "Odd-shaped items in paper envelopes". Mind you, I had gone in TWICE with these exact invitations to make sure I would have the appropriate postage on each. And this so called 'odd-shaped' item is a freakin' sticker. One sticker smaller than the size of a dime. Anyone have any experience with this? Is this a type of situation where I can go in there an have words with these people and they let it slide? It wouldn't bother me so much if I hadn't gone in twice to get it checked.